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Nasir Muftić, Nihad Odobašić

This article questions the extraterritorial scope of the Digital Markets Act (DMA) in relation to the Western Balkans. We argue that the complex interplay between the requirement to adopt the DMA as part of the European Union (EU) accession process and the region’s limited capacity to enforce it may harm competition and consumer welfare. Moreover, it could diminish the EU’s appeal in the region. Given the potential lack of beneficial effects even after formal adoption, countries in the Western Balkans may turn to alternative regulatory models for digital market competition. These developments raise concerns about the effectiveness of the EU’s digital regulatory agenda beyond its borders. In response, we propose that the EU reassess the DMA’s extraterritorial reach to support better adoption and enforcement in the Western Balkans. A more tailored approach could help ensure that the DMA achieves its goals without producing unintended negative consequences in candidate countries.

CNS infections represent a unique challenge to clinicians due to significant morbidity and mortality. The role of ferritin as a reactant of various pathological conditions is currently being intensively investigated. The pathogenesis of cognitive impairment after acute neuroinfectious disease is not yet fully understood. It is believed to be a direct consequence of neuronal damage by the infection, but also by the activation of immunocompetent brain cells, with consequent disruption of signal conduction in a varying period of time after the infection has resolved. The aim of the study is to examine the prediction of ferritin on the degree of cognitive impairment in patients who have suffered from a CNS infection. The values of CSF ferritin were evaluated in three analyzed groups of subjects (bacterial, viral and group with normal CSF findings - meningism). The analyzed clinical data were correlated with the degree of neurocognitive impairment, and the relationship between CSF ferritin and the degree of cognitive impairment was analyzed. The conducted research is a retrospective-prospective analytical and clinical study that was conducted in the period from 01.01.2017 to 01.01.2020. The research includes 90 patients according to previously nominated criteria, divided into three groups, two “examined” and one “control”. The assessment of the cognitive status of the subjects was performed using the MMSE test. The SPSS for Windows software package (version 20.0, SPSS INC, Chicago, Illinois, USA) was used for statistical analysis of the obtained data. We confirmed that the CSF protein ferritin is a good predictor of distinguishing purulent from viral meningitis / meningoencephalitis. The obtained results did not confirm the hypothesis that elevated CSF ferritin values have a negative impact on cognition. Impairment of individual domains of cognition measured by MMSE I, such as “attention”, “calculation” and “memory” are more pronounced in purulent CNS infections. Impairment of individual domain MMSE II “calculation” is more pronounced in the purulent CNS infection category

S. Bezzina Wettinger, Kanita Karaduzovic-Hadziabdic, Ritienne Attard, Rosienne Farrugia, Brooke Wolford, M. Chierici, G. Jurman, Panagiotis Alexiou et al.

Abstract Despite striking successes in identifying novel biomarkers for improved patient stratification and predicting disease progression, numerous challenges remain in the effective integration and exploitation of multiomic data in biomedical applications beyond cancer, for which most bioinformatics strategies are developed and validated. That focus on cancer severely limits the effective development and advancement of algorithms in machine learning and artificial intelligence that do not suffer degraded out-of-domain performance. Generalizability and interpretability of models, however, are also required for robust insights that may translate into clinical practice. Work across different independent datasets is critical for establishing models robust towards unwanted variation in assays, protocols, and cohort populations. Disease-specific context like ethnicity, socioeconomic background, sex, lifestyle, disease phase, and tissue type also strongly affect molecular profiles. We here discuss atherosclerotic cardiovascular disease (ASCVD) as a high-impact non-cancer use case for the challenges remaining in the development and application of the latest bioinformatics approaches to multiomics data integration. ASCVD remains the leading cause of death globally. Disease aetiology, progression, and therapy outcome depend on a complex interplay of genetic, environmental, and lifestyle factors. Integrating these diverse data types effectively remains a challenge but holds transformative potential for personalized medicine. Discovery and access to data of sufficient diversity and extent form key bottlenecks. We here compile a first comprehensive overview of key data sets in ASCVD to complement the established cancer-focused resources as a foundation for future effective development and application of state-of-the-art bioinformatics tools for multiomic data integration.

Ida Fazlic, Victor Gonzalez, F. Vanmeert, Alba Alvarez-Martin, J. Hermans, J. Flapper, B. de Bruin, K. Keune et al.

Krešimir Tomić, S. Vranić

Small-cell lung cancer (SCLC) is a tobacco-associated neuroendocrine tumor comprising ~15% of lung cancers (~150,000 cases/year). For decades, outcomes stagnated: most patients present with extensive-stage disease, screening rarely detects early tumors, surgery is seldom feasible, and platinum-etoposide remained the first-line standard with median overall survival (OS) <12 months. Radiotherapy (including consolidative thoracic RT) and prophylactic cranial irradiation or MRI surveillance offered incremental gains. Two shifts have begun to change the field. First, four transcriptional subtypes (SCLC-A, -N, -P, and inflammatory SCLC-I) support a more personalized approach, with SCLC-I appearing more responsive to immune checkpoint inhibitors (ICI). Second, adding atezolizumab or durvalumab to chemotherapy in extensive-stage SCLC produced a modest median OS gain but, crucially, a tail of long-term survivors. Subsequent trials extended these advances: IMforte suggested benefit from lurbinectedin maintenance with atezolizumab in ES-SCLC, and ADRIATIC demonstrated a landmark OS improvement (~22 months) with durvalumab consolidation after concurrent chemoradiotherapy in limited-stage SCLC. Targeted strategies are now emerging. Delta-like ligand 3 (DLL3), overexpressed in >80% of SCLC, enables T-cell-redirecting therapy: the bispecific T-cell engager tarlatamab improved OS to 13.6 vs 8.3 months over standard second-line chemotherapy, with manageable cytokine release syndrome and occasional ICANS. B7 homolog 3 (B7-H3, CD276), uniformly expressed across SCLC subtypes and linked to poor prognosis, is another compelling target: the antibody-drug conjugate ifinatamab deruxtecan achieved a 54.8% response rate and meaningful survival in heavily pretreated patients, earning FDA Breakthrough designation. Together, DLL3- and B7-H3-directed therapies (with additional ADCs against Trop-2 and SEZ6 in development) are redefining second-line and later care. Key next steps include optimizing sequencing/combination strategies, managing BiTE-specific toxicities, and developing predictive biomarkers. After decades of futility, SCLC is transitioning from uniform chemotherapy to a precision-medicine paradigm with cautious optimism.

Heidi B Borges, Johannes Zaar, E. Alickovic, C. B. Christensen, P. Kidmose

OBJECTIVE Previous studies have demonstrated that the speech reception threshold (SRT) can be estimated using scalp electroencephalography (EEG), referred to as SRTneuro. The present study assesses the feasibility of using ear-EEG, which allows for discreet measurement of neural activity from in and around the ear, to estimate the SRTneuro. Approach: Twenty young normal-hearing participants listened to audiobook excerpts at varying signal-to-noise ratios (SNRs) whilst wearing a 66-channel EEG cap and 12 ear-EEG electrodes. A linear decoder was trained on different electrode configurations to estimate the envelope of the audio excerpts from the EEG recordings. The reconstruction accuracy was determined by calculating the Pearson's correlation between the actual and the estimated envelope. A sigmoid function was then fitted to the reconstruction-accuracy-vs-SNR data points, with the midpoint of the sigmoid serving as the SRTneuro estimate for each participant. Main results: Using only in-ear electrodes , the estimated SRTneuro was within 3 dB of the behaviorally measured SRT (SRTbeh) for 6 out of 20 participants (30%). With electrodes placed both in and around the ear, the SRTneuro was within 3 dB of the SRTbeh for 19 out of 20 participants (95%) and thus on par with the reference estimate obtained from full-scalp EEG. Using only electrodes in and around the ear from the right side of the head, the SRTneuro remained within 3 dB of the SRTbeh for 19 out of 20 participants. .

M. AboArab, Miloš Anić, Vassiliki T. Potsika, Hassan Saeed, Manahil Zulfiqar, Andrzej Skalski, Elisabetta Stretti, V. Kostopoulos et al.

Tiyani Milta Maluleke, M. Maluleke, A. Jelić, Stephen M. Campbell, Vanda Marković-Peković, N. Schellack, Audrey Chigome, A. Cook et al.

Antimicrobial resistance is a considerable global health threat especially among low- and middle-income countries, exacerbated by considerable inappropriate dispensing of antibiotics. There have though been concerns with variable levels of dispensing of antibiotics without a prescription in South Africa. Consequently, a need to comprehensively estimate current levels of dispensing of antibiotics without a prescription, which was the aim of this study.Administer a previously piloted questionnaire to all currently operating community pharmacies in a rural province, where dispensing of antibiotics without a prescription is likely to be greatest. The questionnaire included data on the estimated prevalence of antibiotics dispensed, their class and indication, and whether dispensed without a prescription. Community pharmacies were categorized into three: Independent, Chain and Franchise.128/169 (75.7%) operational pharmacies participated, with independent pharmacies representing the majority (60.9%). There was a 78.3% response rate from 400 distributed questionnaires, including 106 pharmacists (33.9%) and 207 pharmacist assistants (66.1%) from 128 pharmacies. Antibiotics accounted for 47.9% (95% CI: 47.2%-48.6%) of all medicines dispensed. Penicillins were the most prevalent antibiotic dispensed (41.1%). Almost half (47.2%) of the antibiotics dispensed included macrolides, fluoroquinolones and cephalosporins, which are typically antibiotics from the Watch group. Sexually transmitted infections (33.5%) and upper respiratory tract infections (25.8%) were the most frequent indications for antibiotic dispensing. Overall, 69.3% of 128 participating pharmacies in this rural province in South Africa admitted to dispensing antibiotics without a prescription in the past 14 days, principally among independent pharmacies (98.7%). However, estimates suggest only 8.6% of the total volume of antibiotics being dispensed were dispensed without a prescription among the 88 community pharmacies admitting to this practice in the past 3 days. Encouragingly, 98.1% of community pharmacists and 97.6% of pharmacist assistants indicated they always or mostly offered symptomatic relief before dispensing antibiotics without a prescription to patients with self-limiting conditions.There were considerable concerns regarding the prescribing and dispensing of antibiotics in this rural province including Watch antibiotics. This included the number of community pharmacies, especially independent pharmacies, where patients could purchase antibiotics without a prescription. Multiple strategies involving all key stakeholder groups are need to improve future antibiotic use across South Africa and reduce AMR.

Delia Cannizzaro, R. Stefini, K. Arnautović, F. Servadei

In recent years, neurosurgery and clinical neuroscience have undergone a profound transformation, driven by an increasingly interdisciplinary approach that integrates technological innovation, the refinement of therapeutic protocols, and novel rehabilitative paradigms [...].

P. Todorović, Nela Kelam, Anita Racetin, N. Filipović, Yu Katsuyama, M. Saraga-Babic, Katarina Vukojević

Background/Objectives: The Reelin–Dab1 signaling pathway, known for its crucial role in neurodevelopment, particularly in neuronal migration and the formation of cortical layers, has been a subject of extensive research. However, its involvement in gastrointestinal organogenesis is a relatively unexplored area. Our study investigates the expression patterns of Dab1, Reelin, PGP9.5, and Sox2 during stomach development in yotari (Dab1−/−) mice and aims to shed light on how Dab1 inactivation affects epithelial–mesenchymal signaling dynamics, thereby contributing to a deeper understanding of this pathway’s non-neural functions. Methods: Embryonic stomach tissues from yotari and wild-type mice, collected at developmental stages E13.5 and E15.5, were examined by immunofluorescenceto evaluate the difference in expression of Dab1, Reelin, PGP9.5, and Sox2. Semi-quantitative scoring and quantitative image analysis were used to assess protein localization and intensity within epithelial and mesenchymal compartments. Results: Dab1 expression was significantly increased in both the epithelium and mesenchyme of yotari mice at E13.5 and E15.5. Reelin expression in the epithelium showed a visible but statistically non-significant decrease in yotari at E15.5, while mesenchymal expression remained low and significantly lower than controls. PGP9.5 expression was significantly reduced in yotari epithelium at E13.5, then strongly upregulated at E15.5. Mesenchymal PGP9.5 remained consistently high. Sox2 showed no statistically significant changes but increased semi-quantitatively in yotari epithelium and mesenchyme at E15.5. These findings highlight compartment-specific disruptions and potential compensatory mechanisms following Dab1 inactivation. Conclusions: Our findings indicate that Dab1 deficiency leads to distinct molecular changes in epithelial and mesenchymal compartments of the developing stomach. The Reelin–Dab1 axis appears critical for epithelial–mesenchymal coordination, while PGP9.5 and Sox2 upregulation in yotari mice may represent potential compensatory responses that could support epithelial integrity, although this remains speculative without functional validation.

Jonathan de Brusse, J. Daafouz, Mathieu Granzotto, R. Postoyan, D. Nešić

We study deterministic, discrete linear time-invariant systems with infinite-horizon discounted quadratic cost. It is well-known that standard stabilizability and detectability properties are not enough in general to conclude stability properties for the system in closed-loop with the optimal controller when the discount factor is small. In this context, we first review some of the stability conditions based on the optimal value function found in the learning and control literature and highlight their conservatism. We then propose novel (necessary and) sufficient conditions, still based on the optimal value function, under which stability of the origin for the optimal closed-loop system is guaranteed. Afterwards, we focus on the scenario where the optimal feedback law is not stabilizing because of the discount factor and the goal is to design an alternative stabilizing near-optimal static state-feedback law. We present both linear matrix inequality-based conditions and a variant of policy iteration to construct such stabilizing near-optimal controllers. The methods are illustrated via numerical examples.

E. Zerem, Suad Kunosić, A. Kurtcehajic, Dina Zerem, Omar Zerem

The liver is a central metabolic organ that regulates numerous physiological processes, including glucose and lipid metabolism, detoxification, and the synthesis of essential proteins and bile. Bile acids (BAs), synthesized from cholesterol in hepatocytes, not only facilitate the emulsification and absorption of dietary fats but also act as potent signaling molecules through receptors such as the farnesoid X receptor (FXR) and Takeda G-protein-coupled receptor 5. Metabolic dysfunction-associated steatotic liver disease (MASLD) is a leading cause of chronic liver disease globally, closely linked with obesity, insulin resistance, and other components of metabolic syndrome. In MASLD, the metabolism of BAs is markedly disrupted, resulting in alterations in their synthesis, composition, and signaling activity. These changes contribute to hepatic steatosis, inflammation, and fibrosis, thereby exacerbating metabolic dysfunction and liver damage. The altered profiles and signaling activity of BAs in MASLD patients suggest that BAs act not only as biomarkers of disease severity, but also as active mediators of its pathogenesis. Modulators of BA signaling pathways, especially FXR agonists, are the focus of intense research for their potential to beneficially influence liver steatosis and inflammation in MASLD. Recent research has yielded promising results, indicating potential therapeutic application and the introduction of novel agents aimed at modulating BA homeostasis and function. This minireview outlines the physiological roles of BAs, seeks to advance the elucidation of the mechanisms by which their dysregulation contributes to MASLD progression, and highlights current and emerging therapeutic approaches. A deeper understanding of these complex interactions is essential for improving the diagnosis, prognosis and treatment of MASLD.

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